Rotary engine.



PATENTED 00T. 15, 1907. J. KRBHBIEL. ROTARY ENGINE. APPLICATION FILED JAN. 7, 1907 INVENTOIQ line y-y Fig. 3 parts being shown in elevation.

JOHXv KREHBIEL, or CLEVELAND, OHIO.

ROTARY ENGINE.

Specification of Letters Patent.

rammed oet. 15, 1907.

Application tiled January 7,1907. Serial 110.351.042.

To all 'woomit may concern:

Be it known that I, JOHN KREHBIEL, a citizen of the United States of America, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Rotary Engines, lof which the following is a specification, reference being had therein to the accompanying drawings. Y

This invention relates to rotary engines and has for its object to provide an engine of the character described which shall be simple, compact and eflicient and not liable to get out of order and from-which the greatest amount of power shall be 'derived in proportion to the consumption of the motive agent.

,To this end the invention' consists of revoluble eugine members coperating with each other, each provided with a series of radial piston chambers, pistons in said chambers and means for impartinga rotary movement to saidmembers through the medium of said pistons. y

The invention consists further in the peculiar construction, arrangement and combination of parts al1 as more fully hereinafter described and claimed. in th'e specification `and shown in the accompanying'drawings, in which i Figure l is a' vertical central longitudinal section on the line :r-x Fig. 3. Fig. 2, a similar section on the Fig. 3, a horizontal section on the line z-z Figf2.

In the drawings I have shown an engine more especially adapted for use as an explosive engine although I wish it understood that my invention may be used as well in connection with steam or any other-motive vagent and that I do not wish to limit myself to any particular, motive agent. V

As shown in the drawings A, B are the two revoluble members mounted upongthe shaf'ts'C, D, and provided wit-h a series of radial arms E cast hollow and 'bored out to form piston chambers E, said arms being so formed as to` fit nicely in the space between the two opposing arms on the other member with which it meshes in the operation of the parts.

F is a Water jacket formed'around the inner ends of the cylinders or piston chambers and between the outer casing and hub G.

H are the pistons fitting within the piston chambers E preferably cast hollow with their outer ends closed by means of a hardened rounding screw cap a.

I are the combined inlet and exhaust ports formed in the inner end of the piston chambers and .l are pins preferably formed integral with the pistons projecting out through radial slots b formed in the sides of the piston chambers, as shown, and K is a disk or plate connecting the two shafts C, D, and formed with eccentric cam grooves L into which the pins .I project for the purpose of returning the pistons in an explosive en;

gine, where such an engine is to be operated by steam however these cam grooves could be dispensed with and the piston returned by steam. l

L .and M are concentric/slots in the plate K forming the inlet and exhaust passages adapted to register with the ports I in the cylinder casing, the inlet passage being connected with a suitable source of supply oi the motive agent.

N are collars fast on the shafts for holding the plate K in contact with the side oi the revolving members,

their adjacent contacting faces being ground smooth to form a tight joint but yet free to revolve.

O represents the electric ignition plug for the purpose of igniting the charge as the inlet port I passes the same, the cam groove L being so formed as to return the piston and exhaust the products of 'combustion from the piston'chamber as it .passes the elongated exhaust port or passage M.

P, P are gears on ythe engine shafts meshing with each other for the purposeof insuring an even and uniform speed, and power may be taken from said shafts in any suitable and well known mann er although I prefer to connect my engine direct wherev er possible and'if desired I may place anadditional set or pair of engine members on the opposite sides of the gears P P so that instead of obtaining 8 impulses to each complete revolution 1G will be obtained.

Having thus fully described my invention it is intended to operate as follows, the motive agent having been rst admitted into the cylinder through the inlet passage L and port I which` inits rotation cuts off length of its stroke when in the further rotation of the v parts the piston Will-be returned by the cam groove and -the products of combustion exhausted asthe port I passes the elongated exhaust port M, this operationjbeing `repeated 4 'times duringlthe revoluin the rotation of the parts as the impulses are at such frequent intervals.

By forming the kradial arms E with enlarged heads as shown in dotted lines in Fig. l, it enables me toget an exceedingly long bearing facefor the pistonend on an exceedingly short` stroke and I alsoP preferably- I do not Wish to limit myself tothe particular construction .shown as various changes may loe madeavith-` out departingfrom the Ispirit of my invention.

rpistons in said chambers, each. adapted to' alternatelyy act against its opposing member to actuate said members.

I-n'anenglne' the combination, of a pairot interlocking' revoluble members 'each formed with a series of radial pistonchambers. pistons in sai'd chambers each fadaptedr to actuate the opposing member and means for supplying the motive agent to saidl chamber.

4. In'a rotary engine the combination oi revoluhle members formed` with cogs or arms meshing with each other thelopposing member.

5. In a rotary engine the combination' with thev shafts of a pair of revoluble members having 'coga or arms meshing with each other and :radial pistons carried' by said arms adapted to act against the opposingi'member. l

6. In a rotary engine, the combination lbf themevoluble members having radialy arms meshing Vvi'fith eachv other'. radially movable pistons carried by said arms, each adapted to engage. and actuate the opposing member and means.

l and pistons carried by said membersadapted to actagainsh 'for supplyingthe motive agent to said pistons.

7. In a rotary engine, the combination with' the shafts, of a pair of revoluble engine members mounted thereon having radial arms meshing with each other, radially movf l ing pistons mounted in recesses formed in said arms and adapted -to alternately act against the arms of the opposing members. 3

8. In a-rotary engine, the combination'of the revoluble Amembers forriied with radial arms meshing with each other piston chambers-formed in said arms and pistons in said chambers adapted to engage and`impart an impulse to the next adjacent arm of the opposing member to actuate the same. 4 e l 49. In a rotary engine the combination with ,theshatts,

of a pair of revoluble ymembers` formed with radial arms meshing with each other mounted on said shatts,.plston, chambers inl said arms, and pistons in said chambers,

10, 'In a rotary engine a revouble member formed with radial arms forming piston chambers and pistons therein said pistons and arms having a convex outer end portion and concave portions intermediate vsaid arms, said concave and convex portions being united by a line tangential. thereto. l

,11. In a rotary engine the combination with the shafts and 'gears thereonfof a pair of revoluble members formed with radial arms meshing with each other mounted on said shafts, radial piston chambers insaid arms intermittently ses,

communicating with the motive agent and radial' pistons in said chambers, adapted to alternately act against -the arms of the opposing member 'when at substantiallyvright angles thereto.

12. In4 a-rotary engine,^the combination with a pair of i shafts and gears thereon, of a pair 4of revoluble members mounted on said shafts and formed with radial arms meshing with eachother, piston 'chambers in said arms, pistons in said chambers, disks vformed with inlet and exhaust said shafts adjacent to said members and formed with inlet and exhaust -ports and ports in said chambers communicating with the inletand exhaust ports. f

14. 4In' a rotary engine, the combination with\ the shafts. of .the revoluble members formed with arms meshing with `ach other, radial piston chambers formed in said arms,

pistons in said chambers, a disk sleeved on said shafts,

adjacent ,to said members and Vformed with elongated concentric inlet andexh'aust ports and ports in said piston chambers .communicating alternately with saidl inlet and exhaust ports. p

15. In a rotary engine the combination of a pair oi revoluble members formed `with radial piston chambers,

pistons in said chambers formed withtrunnions projecting through radial apertures'in the'walls of said chambers and 'disks forme'd'with cam grooves'in which said trunnions are adapted to travel for the purposes described. l

\16. Inl a rotary engine the combination of a pair of revoluble members formed `with' radial piston chambers, pistons in' said chambers formed with trunnions projecting through'the walls of said, chambers and disks formed with inlet and exhaust ports communicating with said chambers and formed with camgrooves in which said trunnihns ar adapted to travel for the purpose described. v

`17.-: In a rotary. engine,` theuj-c'ombination, of a pair of Aengine lmembers .formed with \radial,'piston chambers, pis-4 Ytons in said chambers, a disk formed with inlet and ex` haust. ports alternately communicating with said chambers and -with, the source'oiI supplyandan ignition device in.. termediate said inlet and exhaust ports'.for the purpose' specified. l

-;18. In' a -rotary engine the combination,'of la' pair of' revolubleimembers formedwith radial piston chambers and.- pistons therein formed with trunnions projecting through radial slots in the walls of said chambers, a disk formed with inlet and exhaust-ports alternately communi-A cating with said chambers andformed With cam grooves in which saidtrunnlons are adapted to travel and an ignition device'for the purpose described.

In testimony whereof I affix my signature in presence 'of twowitnesses.

' JOHN KREHB'IEL.

' Witnesses l Y -O'r'ro F. Bnmfrmn, l ANNA M. Dona. 

